from info import constants, db
from info.models import User, News, Comment, CommentLike
from info.modules.news import news_blu
from flask import render_template, session, current_app, jsonify, g, abort, request
from info.utils.common import user_login_data
from info.utils.response_code import RET

@news_blu.route('/followed_user',methods=["POST"])
@user_login_data
def followed_user():
    user = g.user
    if not user:
        return jsonify(errno=RET.SESSIONERR,errmsg="wei deng ru")

    user_id = request.json.get("user_id")
    action = request.json.get("action")

    if not all([user_id,action]):
        return jsonify(errno=RET.PARAMERR,errmsg="canshu cuowu")

    try:
        other =User.query.get(user_id)
    except Exception as e:
        current_app.logger.error(e)

    if not other:
        return jsonify(errno=RET.NODATA, errmsg="未查询到数据")

    if action =="follow":
        if other not in user.followed:
            user.followed.append(other)

        else:
            return jsonify(errno=RET.DATAEXIST, errmsg="当前用户已被关注")
    else:
        if other in user.followed:
            user.followed.remove(other)
        else:
            return jsonify(errno=RET.DATAEXIST, errmsg="当前用户未被关注")

    return jsonify(errno=RET.OK, errmsg="操作成功")



@news_blu.route("/comment_like",methods=["post"])
@user_login_data
def count_like():
    user=g.user
    if not user:
        return jsonify(errno=RET.SESSIONERR,errmsg="wei deng ru")
    comment_id=request.json.get("comment_id")
    # news_id = request.json.get("news_id")
    action = request.json.get("action")

    if not all([comment_id,action]):
        return jsonify(errno=RET.PARAMERR,errmsg="canshu buzu ")
    if action not in ["add",'remove']:
        return jsonify(errno=RET.PARAMERR,errmsg="canshu buzu ")

    try:
        comment_id=int(comment_id)
        # news_id=int(news_id)
    except Exception as e:
        current_app.logger.error(e)
        return jsonify(errno=RET.PARAMERR,errmsg="canshu buzu ")


    try:
        comment=Comment.query.get(comment_id)
    except Exception as e:
        current_app.logger.error(e)
        return jsonify(errno=RET.DBERR,errmsg="shuju cha xun cuo wu ")

    if not comment:
        return jsonify(errno=RET.NODATA, errmsg="pin lin bu cun zai")

    if action == "add":
        comment_like_m = CommentLike.query.filter(
            CommentLike.user_id==user.id,
            CommentLike.comment_id==comment_id
        ).first()
        if not comment_like_m:
            comment_l=CommentLike()
            comment_l.user_id=user.id
            comment_l.comment_id=comment.id
            db.session.add(comment_l)
            comment.like_count +=1

    else:
        comment_like_m = CommentLike.query.filter(
                CommentLike.user_id == user.id,
                CommentLike.comment_id == comment_id
            ).first()

        if comment_like_m:
            db.session.delete(comment_like_m)
            comment.like_count -= 1
    try:
        db.session.commit()
    except Exception as e:
        db.session.rollback()
        current_app.logger.error(e)
        return jsonify(errno=RET.DBERR,errmsg="shuju canzuo shibai")
    return jsonify(errno=RET.OK,errmsg="ok")



@news_blu.route("/news_comment",methods=["post"])
@user_login_data
def comment_new():
    user=g.user
    if not user:
        return jsonify(errno=RET.SESSIONERR,errmsg="yoong hu wei dengru")

    news_id=request.json.get("news_id")
    comment_n = request.json.get("comment")
    parent_id = request.json.get("parent_id")

    if not all([news_id,comment_n]):

        return jsonify(errno=RET.PARAMERR,errmsg="can shu bu zu")

    try:
        news_id=int(news_id)
        if parent_id:
            parent_id = int(parent_id)

    except Exception as e:
        current_app.logger.error(e)
        return jsonify(errno=RET.PARAMERR,errmsg="shu ju cuowu")


    try:
        news=News.query.get(news_id)
    except Exception as e:
        current_app.logger.error(e)
        return jsonify(errno=RET.PARAMERR,errmsg="shu ji cha xun shi bai")

    if not news:
        return jsonify(errno=RET.SESSIONERR,errmsg="shu ju bu cun zai")

    comment=Comment()
    comment.user_id=user.id
    comment.news_id=news_id
    comment.content=comment_n
    if parent_id:
        comment.parent_id=parent_id
    try:
        db.session.add(comment)
        db.session.commit()
    except Exception as e:
        current_app.logger.error(e)
        db.session.rollback()

    return jsonify(errno=RET.OK,errmsg="ok",data=comment.to_dict())


@news_blu.route("/news_collect", methods=["post"])
@user_login_data
def collect_news():
    user = g.user
    if not user:
        return jsonify(errno=RET.SESSIONERR,errmsg="yonghu wei deng ru")

    news_id = request.json.get("news_id")
    action = request.json.get("action")

    if not all([news_id,action]):
        return jsonify(errno=RET.PARAMERR,errmsg="can shu cuo 111111")
    if action not in ["collect","cancel_collect"]:
        return jsonify(errno=RET.PARAMERR,errmsg="can shu cuo wu2")

    try:
        news_id = int(news_id)
    except Exception as e:
        current_app.logger.error(e)
        return jsonify(errno=RET.PARAMERR,errmsg="canshu cuowu3")
    try:
        news=News.query.get(news_id)
    except Exception as e:
        current_app.logger.error(e)
        return jsonify(errno=RET.DBERR,errmsg="shu ju ku wen ti")
    if not news:
        return jsonify(errno=RET.NODATA,errmsg="shu ju bu cun zai ")
    if action =="cancel_collect":
        if news in user.collection_news:
            user.collection_news.remove(news)
    else:
        if news not in user.collection_news:
            user.collection_news.append(news)
    return jsonify(errno=RET.OK,errmsg="ok")


@news_blu.route("/<int:news_id>")
@user_login_data
def news_detail(news_id):

    user=g.user

    news_list=[]
    try:
        news_list = News.query.order_by(News.clicks.desc()).limit(constants.CLICK_RANK_MAX_NEWS)
    except Exception as e:
        current_app.logger.error(e)

    news_list_li=[]
    for news in news_list:
        news_list_li.append(news.to_basic_dict())

    news = None

    try:
        news = News.query.get(news_id)
    except Exception as e:
        current_app.logger.error(e)

    if not news:

        abort(404)

    news.clicks += 1

    is_collected = False

    if user:
        if news in user.collection_news:
            is_collected = True

    comments=[]
    comment_like_ids=[]
    try:
        comments=Comment.query.filter(Comment.news_id ==news_id).order_by(Comment.create_time.desc()).all()
    except Exception as e:
        current_app.logger.error(e)
    if g.user:
        try:
            comment_ids=[comment.id for comment in comments]
            comment_likes = CommentLike.query.filter(CommentLike.comment_id.in_(comment_ids),CommentLike.user_id==g.user.id).all()
            comment_like_ids = [comment_like.comment_id for comment_like in comment_likes]

        except Exception as e:
            current_app.logger.error(e)

    comment_dict_li = []
    for comm in comments:
        comment_dict = comm.to_dict()
        comment_dict["is_like"] = False
        if comm.id in comment_like_ids:
            comment_dict["is_like"] = True
        comment_dict_li.append(comment_dict)

    is_followed = False
    # if 当前新闻有作者，并且 当前登录用户已关注过这个用户
    if news.user and user:
        # if user 是否关注过 news.user
        if news.user in user.followed:
            is_followed = True



    # try:
    #     comments=Comment.query.filter(Comment.news_id==news_id).order_by(Comment.create_time.desc()).all()
    # except Exception as e:
    #     current_app.logger.error(e)
    #     return jsonify(RET.DATAERR,errmsg="shu ju cha xun shi bai")
    #
    # for comment in comments:
    #     com=comment.to_dict
    #     comment_list.append(com)

    data={
        "news_list_li":news_list_li,
        "news":news.to_dict(),
        "user": user.to_dict() if user else None,
        "is_collect":is_collected,
        "comments":comment_dict_li,
        "is_followed": is_followed
    }

    return render_template("news/detail.html",data=data)

